Six conditions of Muslim’s wealth determine if he or she must pay Zakat from it:
Absolute Ownership
Growth
Minimum Quantity
Abundance Above Need
Solvency (Freedom from Debt)
Lapse of a Lunar Year (or Time of Harvest)
What Is Absolute Ownership?
ABSOLUTE OWNERSHIP is a legal term of art in Islamic jurisprudence (fiqh). It means that while God is the true Owner of all things, He has — as a mercy, honor, safeguard against the human propensity for greed, and test — accorded human beings the right as individuals to possess and control property to the exclusion of all others, such that he or she can exchange it for another asset or dispose of it without anyone else’s permission. This is a condition of Zakat because any material asset of wealth from which one pays Zakat must be transferred into the exclusive possession, or toward the sole benefit, of an individual from one of the eight categories that God has decreed eligible for Zakat. In other words, the individual Zakat recipient, someone poor or needy (or in the case of direct benefit, one in bondage or debt-ridden) must become the only owner or reap the unshared benefit of the Zakat paid by a Muslim whom God has materially enriched.
This means that assets administered on behalf of the community, properties in public trust, ill-gotten gains (like stolen property or interest), bad debts (until paid), and contributions (until one gains full control over them) have no Zakat.
What Does Wealth that Grows Mean?
GROWTH describes two states of a person’s property: (i) An asset that provides its owner profit or material benefit, or that could if put to use, or (ii) an asset that is itself produced by growth, either as a gain or by acquirement. So, earnings, livestock, and planting give or can give one increase. This is the meaning of the Prophet’s statement, on him be peace, that “Sadaqah (Zakat-alms or freewill offering) does not diminish wealth” (Al-Tirmidhi). One pays Zakat at a fraction of surplus growth, not on the things oneself or one’s family personally use, like a house (one lives in), furniture, a vehicle, clothing, or tools (including books). A farmer pays Zakat from crops at harvest but not on their remaining yield, even if stored for years. This adds another shade to Zakat’s linguistic meaning of ‘growth’ (along side furnishing its payer with blessing and increase from God.) At cultivation, a crop is literally growth. Stockpiled, it no longer grows, though it still holds wealth.